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Laminating method for adhesive layer

A technology of adhesive layer and lamination, applied in the direction of bonding method, surface pretreatment bonding method, adhesive, etc., can solve the problem of insufficient surface treatment of the adhesive layer, and achieve the effect of preventing peeling

Active Publication Date: 2009-07-15
SUMITOMO CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, only the surface treatment of the adhesive layer is not sufficient, and a method for more firmly adhering the adhesive layer to the film is desired.

Method used

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  • Laminating method for adhesive layer
  • Laminating method for adhesive layer
  • Laminating method for adhesive layer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Examples are shown below to specifically show the present invention, but the present invention is not limited by the following Examples.

[0038] use figure 2 In the shown device, a polarizing plate (Sumikalan (registered trademark) SRW862A-X-F manufactured by Sumitomo Chemical Industries, Ltd.) and an adhesive layer (Nonki ヤ ria (registered trademark) P3132-2linte ツ Co., Ltd.) corona treatment, the corona-treated surface was laminated, and a resin film laminated with an adhesive layer was produced.

[0039] The laminated layer of the polarizer faces upward, and is attached to the position A of the support plate 9, and the laminated layer of the adhesive layer faces upward, and is attached to the position B of the support plate, and the peeling film of the adhesive layer is peeled off. The support plate was placed on the carrier tape 8, and while moving at a linear speed of 10 m / min, the polarizing plate and the bonding were carried out using a corona treatment devic...

Embodiment 2

[0056] As the adhesive layer, use nonki ヤ ria (registered trademark) P119E (リンテ ツ ク (KK Co., Ltd. product), and the others were carried out in the same manner as in Example 1. Table 2 shows the evaluation results.

[0057] As in Example 1, the case of no corona treatment (the corona output was 0) was inferior in adhesiveness compared to the case of both corona treatment.

[0058] [Table 2]

[0059]

Embodiment 3

[0061]As a resin film, it carried out similarly to Example 1 except having used the retardation film (Sumitomo (registered trademark) KSEES440108Z-F Sumitomo Chemical Industries, Ltd. product). Table 3 shows the evaluation results.

[0062] As in Example 1, the case of no corona treatment (the corona output was 0) was inferior in adhesiveness compared to the case of both corona treatment.

[0063] [table 3]

[0064]

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PUM

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Abstract

PROBLEM TO BE SOLVED: To provide a method for sticking an adhesive layer, by which the adhesive layer can strongly be stuck to a polarizing film so that the adhesive layer is not peeled from the polarizing film, when a peeling film is peeled from the polarizing film to stick the polarizing film as a resin film to the glass substrate of a liquid crystal cell, and also so that the adhesive layer is left on the polarizing film and not left on the glass substrate, when the biting of bubbles and the formation of wrinkles are caused on the adhesion of the polarizing film to the glass substrate through the adhesive layer, followed by at once peeling, repairing and then again sticking the polarizing film. SOLUTION: This method for sticking the adhesive layer to the resin film is characterized by subjecting the sticking surfaces of the resin film and the adhesive layer to surface-activating treatments such as corona treatments, respectively, and then sticking the adhesive layer to the resin film.

Description

technical field [0001] The present invention relates to a method of laminating an adhesive layer on a resin film such as a polarizing plate and a retardation film used in the manufacture of a liquid crystal display or the like. Specifically, it relates to a lamination method of an adhesive layer in which the adhesive layer adheres (adheres) more strongly to a resin film than to a substrate or the like. Background technique [0002] Polarizers and retardation plates used in the manufacture of liquid crystal displays (hereinafter referred to as LCDs), etc., are usually bonded with an adhesive layer on these films, laminated with a release film on top, and laminated on the other film surface. The state of the protective film and the product. When manufacturing a liquid crystal display, these films are laminated on a glass substrate of a liquid crystal cell through an adhesive layer without a release film. [0003] In addition, a decorative film or the like may be manufactured...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J5/02G02B5/30C09J5/00C09J7/02C09J201/00
CPCC09J5/02C09J7/22
Inventor 富永俊彦松本周三
Owner SUMITOMO CHEM CO LTD